6
RP-2009 Pump for the GX-2009
Pump Unit
The pump unit is housed in a red plastic case. A GX-7 type male quick
connect fitting is located on one end of the pump unit. This is the inlet
fitting to the pump unit. The GX-7 quick connect is installed in a removable
clear plastic filter holder. A cotton dust filter is inside the filter holder. The
filter holder may be removed by turning it counterclockwise and pulling it
away from the pump unit. Two flat membrane disk hydrophobic filters
and a wire mesh disk are located in the pump unit on the filter holder end.
The battery compartment is located on the other end of the pump unit. One
AA alkaline battery is installed in the battery compartment and held in
place by a black plastic battery cap. The battery cap may be removed for
access to the battery by pushing it down, turning it 1/4 turn
counterclockwise, and pulling it away from the pump unit.
The exhaust fitting is located under the battery cap tab.
A POWER button, a buzzer opening, a power indication LED, and a low
flow LED are located along the middle front of the pump unit. The
POWER button turns the pump unit on and off. The buzzer opening allows
the buzzer’s sound to emanate from the buzzer. The power LED is on
when the pump unit is on. The low flow LED flashes when the pump is
experiencing a low flow condition.
An instrument release indicator and an instrument lock indicator are
located on the front left of the pump unit. The indicator tab on the battery
cap indicates the current position of the battery cap.
Inside the pump unit case are the circuit board and diaphragm pump.
There are no user serviceable components inside the pump unit case except
for the battery accessible through the battery cap and the wire mesh and
hydrophobic disk filters accessible through the filter holder.
The pump unit is configured to mate with the sensor face of the GX-2009.
Retaining tabs on the top of the RP-2009 snap onto the sensor face of the
GX-2009. The GX-2009 must be installed so the front of the instrument is
facing the front of the RP-2009. When installed, the RP-2009 seals to the
GX-2009’s sensor face with a gasket.
Rubber Sample Nipple
A cone shaped 4 inch long rubber sample nipple is included with the RP-
2009 and is normally installed on the inlet fitting by pushing the larger end
over it. The smaller end can be inserted in a hole or some other access to an
enclosed area to sample the environment.
